On 12/17/2009 12:51 PM, Mark Ryden wrote: > Hello, > AFAIK, in windows 7, **32 bit**, there is a limit of 3GB physical > RAM which can be recognized by the operating system. > This means that if you have 4GB of RAM, only 3 will be used. This is usually a BIOS limitation. > My question is: > 1) In Fedora 12 32 bit default installation , does the kernel knows > more than 3 GB of RAM ? what is the limit ? The same. It uses what the BIOS tell it is available, unless you run a PAE kernel. The Physical Address Extensions allow you to address the full amount of your RAM. > 2) In Fedora 12 64 bit default installation , does the kernel knows > more than 3 GB of RAM ? what is the limit ? 64-bit does not have the artificial limitation (the actual limit is *much* higher than you can currently put in a machine today) that 32-bit does. You should see the same with Windows too. > Rgs, > Mark -- Kevin J. Cummings kjchome@xxxxxxx cummings@xxxxxxxxxxxxxxxxxx cummings@xxxxxxxxxxxxxxxxxxxxxxx Registered Linux User #1232 (http://counter.li.org) -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines